Pasteurizer.



@FETE HOMER 0. FISHER, OF CHAGRIN FALLS, OHIO.

PASTEURIZER.

Specification of Letters Patent.

To all rwhom it may concern:

Be it known that I, l-loMER G. FISHER, a citizen of the United States, residing at Chagrin Falls, inthe county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Pasteurizers, of which the following is a specication.

. This invention; relates broadly to pasteurizing apparatus and particularly to that class of such devices used in treating milk.

More specifically the invention relates to apparatus of the character described comprising a cooler section, a regenerative section for heating the incoming milk and reducing the temperature lof the pasteurized milk, and a heater section, the latter being provided with a suitable device for bringing about a forced circulation.

The invent-ion may be further briefly surnmarized as consisting in the construction and combinations of parts hereinafter set forth in the following description, drawings and claims.

Referring to the drawings, Figure l represents a top plan view of my device; Fig. 2 is a longitudinal sectional view taken'upon the line 2-2 of Fig. 1 and looking in the direction of the arrows indicated in Fig. 1; and Fig. 3 is a sectional view of one of the end portions of the regenerative section.

ln carrying out the invention any pre ferred form and construction of parts may be employed so long as they possess the necessary characteristics, but I have shown one form in the drawings which is highly effective in operation, and in such embodiment 1 and 2 represent the side portions of the cooler, 3 represents the bottom, and 4 the end plates which are provided with openings in which are secured tubes 5 which extend from one plate to the other. These plates 4 are still further provided with bolts G for receiving nuts G and for a purpose to be described and upon the inside of the pan formed by these parts the end plates 4 are provided with batlles or partitions 7 which alternate from the two end plates 4 and fall short of reaching the opposite end plate soy that a single circuitous passage is formed in the vessel or pan about the pipes or tubes 5 so that the circulating medium when it enters at one end of the circuitous passage, nust Ytraverse along the entire length ofthe pipes or tubes before it can pass out.

Secured to the right-hand end plate 4,-

as shown in Fig. 1, is a header plate 8 provided with return bend pocket portions 9 whiclrestablish a passage from one tube 5 to the next tube 5 thereby forming a single continuous milk passage through the entire pan. The opposite end plate 4, as shown in Fig. 1, is provided with a header plate 10 having return bend pocket portions 1l in the center and atonel end with an inlet pipe connection 12 4and at the other with an outllet pipe connection 13. Suitable unions 14 are supplied to these connections for a purposev to be described. f

It will be seen oni the foregoing that Patented Dec. 10, i912 when the milk or other liquid enters through y the connection 12 it passes through one con-v tinuous circuitous route inthe tubes 5 and pocket portions formed in the headers, to the outlet connection 13. In the meantime, however, a cooling medium, preferably in 'the form of a liquid, is supplied through the pipe 15 at' a point near the milk outlet 13 to the inside of the pan, and it passes out through a pipe l16 in the bottom of thev v pan and adjacent to the inlet 12 so that the cooling liquor follows the tubes in its circulation. Y f v Connected! to the cooler section, by the union 14, is a suitable pipe or other connection 17 which is connected to a pipe connection 18 by a suitable union 19, and this connection 18 is secured in a header 2O similar in all respects to thelieader 10 of the cooler section.' This regenerative section is composed of a pan formed with sides 21 and 22 and cast endplates 23, all of which are preferably higher than the corresponding parts of the cooler section for a purpose to be described. Tubes 24 are arranged in this section in a manner similar to those in i'lie cooler section, and partitions or battles 25 are provided to direct the circulation of the milk, or other liquid, along the pipes or tubes. One end portion 23 ot this section is secured to the header 20 while the other end is provided with a header 26 these headers being similar in all respects to those used in the cooler section. This pan is further provided with a discharge connection 28 located preferablyat the upper lefthand corner, as shown, and in the bottom of plied through a tube 29 at the lower left- Ihand corner and at the be inning of the cir- ?cuitous route on the outsi e of the tubes.

passes through the circuitous route formed by the batlles or partitions and over the tubes .the pan. The raw mill; or other liquid is sup- 60 ,tion consisting of a pan, horizontally diswhich the milln'ror other liquid, on the out-A side of the tubes in the regenerative section passes It will be seen that, vas the raw milk passes in through the tube 29 at one end of the circuitous route on the outside of the tubes and from thence flows through this route andout through the tube 23', its temperature 'will be raised by the hot milk or other liquid, which passes in through the inlet connection 30 through the tubes and out through the connection 18 to the cooler.

y The heater sectionis similar in general construction to the cooler section and comprises sides 33, 34 and a bottom 35r as well as end plates 36 to which are secured the headers 37 and 38, the latter being similar in all respects to the headers 1G and 20. This section is also provided with tubes 39 which receive the milk and with partitions 40 forming a circuitous route for the heating medium which is, in this instance, hot

l other' end of the circuitous route.

water, circulated by ymeans of a pipe 41 secured in a connection 42 at the beginning of the cireuitous route and in this instance at the'upper left-hand corner of the heater section, and to enter a connection 43 at the This pipe 4l is provided with a steam jet 44 which projects a supply of steam into the Apipe 41 so that hot water is drawn through the connection 42 and from the upper end .of the circuitous route and forced up through the connection 43 to the lower end of the circuitous route. In this waythe heating medium, or hot water, is delivered at its highest temperature to the lower end l of the heater section. The milk enters the Unions 4'? and are supplied to these sec- .tions whereby the parts may be removed and cleaned. f

of the sections is provided with bolts 6 'whidh receive suitable 4ring nuts 6 for holding the headers in. place. i Having described my invention, l claim l. A pasteurizer comprising a'heater sec posed Jtubes arranged in saidppan and forming a single circuitous liquidpassage, means a regenerative section consisting oi a pan, tubes arranged therein and forming one ein cuitous liquid passage, means for maintain pan above the level of the liquid in the tubes, means for causing the liquid in the pan to follow the course of the tubes vin one circuitous course, and a cooler section consisting of a pan and a plurality oit' tubes arranged to form one circuitous liquid passage;` means for supply ing a cooling lmedium to said cooling sec'- tion so as to follow in one circuitous course the tubes in such cooling section, andsuitable connections between the several seetions.

tion consisting of a pan, a plurality of tubes extending from one end of the pan to the other, a suitable header on 'each end of the pan and connecting the tubes at the ends in sage through the tubes in the pan, means for supplying a heating medium tc said heating of the tubular passage, a regenerative secextending from one end of the pan to the other, said pan being greater in height than the heater pan, a header on each end of the regenerative pan and forming with the tubes one continuous circulation :for the lliquid to be treated, a connection between one end of the regenerative tubular passage and the outlet of the heater, means for supplying the liquor to be treated to the regenerative pan on the outside of the tubes therein, a .suitable connection between the regei'iei'ative pan and the inlet of the heater section, and a suitable cooler connected to the discharge from the tubes of the regenerative section.

3. A heater section for a pasteurizer coniprising a pan having therein suitable tubes forming one continuous circulation through the pan, and partitions extending alternately from opposite ends of the pan and 'between the tubes and forming one continuous course with the course of circulation through the tubes, a Suitable connection tinuous course formed bythe partition, a suitable steam jet entering-'said connection and adapted to cause circulation in said Yconnection and 'in 'the vcircuito-us route formed in the pan. y

` 'ln testimonywhereof signature vin presence otwowitnesses as follows.

y HUMER 0, FSHER. A'Vlitnesse'sz ALToN H. BiiMis,

CHRISTINE H. Transen.

2. A pasteurizer comprising a heater sec-v for supplying a heating medium to said pan,

ing a level of liquid vin the regenerative a manner to form one continuous liquor passection, a suitable connection at each end i ,tion consisting of a pan having liquor tubes I ico iic y in the pan adjaeent the ends of the ccnu 

